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AP Enviormental (Chptr. 2) Flashcards

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432987810ScienceA process for producing knowledge methodically and logically
432987811ReproducibilityMaking an observation or obtaining a particular set result more than once
432987812ReplicationRepeating studies or tests to verify reliability
432987813Significant NumberMeaningful numbers whose accuracy can be verified
432987814Deductive ReasoningDeriving testable predictions about specific cases from general principles
432987815Inductive ReasoningInferring general principles from specific examples
432987816HypothesisA provisional explanation that can be tested scientifically
432987817Scientific TheoryAn explanation supported by many tests and accepted by a general consensus of scientists
432987818Natural ExperimentA study of events that have already happened
432987819Manipulative ExperimentOne in which some conditions are deliberately altered while others are held constant to study cause-and-effect relationships
432987820Controlled StudyThose in which comparisons are made between experimental and control populations that are identical except for the variable being studied
432987821Blind ExperimentThose in which those carrying out the experiment don't know until after data has been gathered and analyzed which was the experimental treatment and which was the control
432987822Double- Blind ExperimentOne in which neither the experimenters or the the subjects know until after the data has been gathered and analyzed which was the experimental treatment and which was the control
432987823Dependent VariableA variable that is affected by the condition being altered in a manipulative experiment
432987824Independent VariableA factor not affected by the condition being altered in a manipulative experiment
432987825ModelSimple representations of a more complex situation
432987826SystemsNetworks of interactions among many independent factors
432987827ThroughputA flow of energy and matter into, through, and out of a system
432987828Positive Feedback LoopA situation in which a factor or condition causes changes that further enhance that condition or factor
432987829Negative Feedback LoopA situation in which a factor or condition causes a change that reduce that factor or condition
432987830HomeostasisMaintaing a dynamic, steady state in a living system through opposing, compensating adjustments
432987831DisturbancesPeriodic, destructive events such as fires or floods: changes in an ecosystem that affects the organisms living there
432987832ResilienceThe ability of a community or ecosystem to recover from a disturbance
432987833State ShiftA permanent or long-lasting change
432987834Emergent PropertiesCharacteristics of whole, functioning systems that are quantitively or qualitatively greater than the sum of the systems' parts
432987835Scientific ConsensusA general agreement among informed scholars
432987836Paradigm ShiftsA model that provides a framework for interpreting observations
Aug 11, 2013

When it comes to back to school shopping for freshman students there's no need to make a list with the obvious items like notebooks, pencils, erasers and pens. You probably have a whole drawer stuffed full of school supplies like those that you can re-use. Within this article we'll be mentioning 5 supplies every freshman student should buy and we want you to focus on items that might not have immediately come to mind. If you can't think of any off of the top of your head then all you have to do is read the rest of article to find out what they are!

Concepts of Evolution Flashcards

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594498914HuttonSaid that layers of rock are formed by earth's movement. And the hint of rain and temperature give the formations we see.
594498915LyellPast events that still occur till these days: uniformitarianism
594498916Structure of the EarthDeduced from the action resulted by an earthquake.
594498917Primary Waves Secondary WavesTravel through any material Only travel through solids
594498918CoreComposed by inner and nickel
594498919Inner CoreThe high temperature could reach the liquid state but a big pressure keeps it solid.
594498920Outer CoreLess pressure, therefore is liquid. Can travel, producing earth's magnetic field.
594498921MantleThe largest layer. Really hot. Defined as plastic
594498922AsthenosphereMore plastic than the rest of the upper mantle because it contains liquid (plastic)from the lower mantle
594498923LithosphereFrom the mantle to the crate. It's rigid and broken up into plates
594498924CrustUppermost part of the lithosphere
594498925Oceanic CrustThe denser part of the Crust because it is so compact. Also called basalt
594498926Continental CrustMost above sea level. Lower density
594498927Plate tectonicsHas caused the creation of large scales on the earth
594498928Divergent Plate BoundaryAlso known as spreading centers because it's where new cross is formed. Plates move toward divergent (opposite) directions
594498929Convergent Plate BoundaryPlates move toward convergent (the same) directions
594498930Oceanic-oceanic convergenceOne plate slide under another. Form volcanos under the water that can become islands
594498931Oceanic-continental convergenceThe oceanic plate will slide under the continental plate. Form continental volcanos.
594498932Continental-continental convergenceSmall amount of subduction because the plates have the same density. The plates collide and mountains occur.
594498933Transform BoundariesPlates slide past each other
594498934Continental Drift - WegnerPurposed that the continents used to be together and formed a large continent called pangea. Theory not really accepted because Wegner did not have the mechanisms to prove it.
594498935Seafloor Spreading - HessNoticed polarities on the sea floor. The different polarities altern and this is important because provides the mechanism for continental drift
594498936LamarckTheory of use and disuse. All species have tendency toward complecity and perfection. Some organisms will become prominent by use and disuse Organ system that allows survivement and reproduction and can be passed to the offspring Theory proved wrong because acquired characteristics can't be passed to offspring
594498937MalthusRealized that human grows more than dies and only catastrophic events could stop it
594498938Theory of EvolutionTheory made by Darwin after his trip awound the world
594498939Obs #1All populations would grow exponentially if all individuals reproduced successfully
594498940Obs #2Populations tend to be stable except for when the season changes and they migrate
594498941Obs #3Resources are limited
594498942Interference #1More individuals than the environment can support causes a struggle for surviving among the population and only some survive
594498943Obs #4Individuals of a populations change their characteristics. No individuals are exactly alike.
594498944Obs #5Much of the variation in heritable
594498945Interference #2Individuals whose inherited high traits have more chances to leave more offspring than others
594498946Interference #3The differences among individuals will lead to a change among the population. They can leave good characteristics accumulating over generations.
594498947Natural SelectionOrganisms take over a habitat, fill the niches, change with each generation and the last allows them to take more adventages over the habitat.
594498948Called adaptationsSpecies are thought to have descended with changes of other species
594498949Artificial SelectionHumans modify individuals according to what they want to produce. This is not a natural change, is ARTIFICIAL
594498950Fossil RecordFossils found in layers of rocks are proof of change over time
594498951Geographic DistributionOr biogeographic. Found that animals in different continents had the same behaviors and body structures. According to him, it was the environment that adapted these animals to the behaviors and bodies.
594498952Analogous StructuresThe same functions of biogeography (animals adapted to behaviors and body structures by the environment and pressures of natural selection)
594498953Homologous StructuresIndividuals with different form and function but constructed by the same basic bones. Ex: four-limbed creatures with back bones come from the same ancestors
594498954Similarities in early developmentVertebrates that look the same. Evolutionists believe that the common cells and tissues, that grow in similar ways, are a proof of homologous structures and so are a proof of evolution
594498955Patterns of EvolutionIs the evolutionary changes that take place over a lonmg period of time.
594498956Mass ExtinctionsA huge number of species disappearing really fast and ecosystems wiped out, what causes the disruption of energy flow and the collapse of food webs
594498957K-T BoundaryA layer of clay around the whole world that has a concentration of an element that does not occur is earth, it occured when we had the dinosaurs' extinction
594498958Adaptie RadiationWhen some species take adventages over a niche and developt adaptions to better explore it.
594498959Evolution ModalitiesThree ways of evolution that produce analogous structures
594498960Divergent EvolutionAn ancestral species that changes overtime
594498961Converging EvolutionCompletely different environments that apply the same pressure and so create individuals similiar to each other
594498962Parallel EvolutionAlso lives to analogous structures
594498963Co-EvolutionProcess by which two species evolve and respond to changes over time
594498964Gene for Gene ResistanceEx: AVR: the disease R: the resistance - immune the receptor (can protect from AVR)
594498965Punctuated EquilibriumRapped evolution that occurs after a period of no evolution. It's not gradualism, species do not evolve gradually
594498966Mutation in Developmental GenesGenes called HOX specify the body plan. Changes in these genes could produce a new body plan
594498967Speciation ISpecies are a group of organisms that can interbreed and produce fertile offspring. Population is a group of individuals from the same species in one location. Gene pool is the combined info of all member of a pop. Evolution is complete when two species can no more produce viable offspring.
594498968Speciation IITwo species reproductively isolated from each other
594498969Pre-zigoticSpeciation that occurs before the zygote is formed
594498970Behavioral IsolationAre able to produce fertile offspring but because of their different mating habits, they dont mate and therefore are reproductively isolated
594498971Geographic IsolationOr habitat isolation. Two populations separated by geography so they do not mate.
594498972Temporal IsolationAre phiscally able to mate but are fertile at distinct times
594498973Mechanical IsolationThey do not match
594498974Non Viability of the EmbryoHas so many genetic problems that the embryo dies as soon as it gets formed
594498975Sterility of the OffspringCan be produced and have a healthy life, but it can not produce offspring.
594498976MicroevolutionChange in a an allele frequencies over time
594498977Genetic driftA change in a population allele frequencies do to chances
594498978Bottleneck effectDrastic reduction in population size
594498979Founder effectFormation of a new colony
594498980Natural SelectionAccumulation and maintaing favorable genotypes in a pop. Due to diffrential success and reproduction and acts on phenotypes
594498981Single Gene TraitsA single gene produces a phenotype that can be EITHER: for or against.
594498982Polygenic TraitsProduced by more than one gene. Represented by Bell Curve.
594498983Directional SelectionOne extreme of the population (curve) is selected against
594498984Stabilizing SelectionTwo extremes are selected against, what results in more of the average.
594498985DisruptedThe average (middle) is selected against and the extremes live to fight again.
594498986Gene flowA change in allele frequences caused by a migration of fertille individuals into or out for a population
594498987MutationChange in organisms' DNA. To affect the population in must occur in a gamete and this gamete must be used to create another individual
594498988Hardy-Weinberg TheoremPopulation that is not evolving. 5 causes? Random mating Population must be large No gene flow No net mutation of alleles Natural selection not acting on individuals
594498989HardyEquations used to calculate genetic frequencies of a population.
594498990BB - 1st B dominant allele - P Bb bb - 1st B recessive allele - QHomozygous dominant Heterozygous Homozygous recessive
594498991P+Q=1To calculate allele frequencies ex: P = 0.8 Q=? Q=0.2
594498992P2+2PQ+Q2=1To calculate genotypic frequencies

Exam Bio Test Ch 32 Flashcards

Introduction to Animals

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799244454Tissuesgroups of cells working together for a common function
799244455Organsgroups of tissues working together for a common function
799244456Hermaphroditeswho produces both male and female gametes?
799244457embryoswhere do germ layers exist in?
799244458tissues/organswhat do germs give rise to?
799244459differentiationthis important process occurs during development and allows animals to develop into complex multicellular organisms
799244460backbonethis major characteristic separates vertebrates from invertebrates
799244461heterotrophic animalswhat kind of animal gets organic compounds from outside sources?
799244462nervous systemthis tissue type is responsible for detecting stimuli from the environment
799244463indirect developmentthis type of development usually involves a larval stage
799244464segmentationthis term refers to a body composed of similar, repeating units
799244465ingestionanimal takes in food
799244466digestionanimal takes carbohydrates, lipids, amino acids and other organic molecules from the material or cells it ingested
799244467symmetrybody arrangement in which parts that lie on opposite sides of an axis are identical.
799244468asymmetryno symmetry
799244469radial symmetrya top and bottom side, but no front, back, left or right end - parts are organized in a circle around the axis
799244470bilateral symmetrytwo similar halves on either side of a central plane
799244471gillsgas exchange occurs in the _____ of aquatic vertebrates
799244472lungsgas exchange occurs in the _____ of terrestrial vertebrates
799244473closedvertebrates have a ____ circulatory system with a multichambered heart
799244474opensome invertebrates have a ____ circulatory system in which fluid is pumped by the heart through vessels and into the body cavity and then back to vessels
799244475body cavitya fluid-filled space that forms between the digestive tract and the outer wall of the body during development
799244476body cavityfunctions of the _____ ______: 1. aids in movement by providing a firm, fluid filled structure against which muscles can contract 2. acts as a reservoir and medium of transport for nutrients and wastes
799244477integumentouter covering of a vertebrate
799244478integumentfunctions of the ______: gas exchange, protection, and insulation
799244479cephalizationthe concentration of sensory and brain structures in the anterior end of the animal.

bio test one 32 Flashcards

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52819002all protostomes must have3 germ layers, bilateral symmertry in at least one life stage, anterior brain that surrounds the entrance to the digestive tract, ventral nervous system with pair parallel nerve cords
52819003protosomes may havespiral and determinate cleavage, schizocoelous body cavity formation, mouth develops from blastopore
52819004two groups of protostomeslophotrochozoans and ecdysozoans
52819005lophotrochozoans- internal skeletons, many have a trochophore larva, and some have a lophophore (a specialized feeding structure).
52819006ecdysozoansexternal skeletons, grow by molting (ecdysis)
52819007arrow wormsSmall predaceous worms that are common components of the marine plankton,
52819008lophophoratespolyphyletic, U-shaped fold in the body, lack distinct head
52819009phyla of lophophoratesectoprocts, phoronids, brachiopods
52819010Ectoprocts(moss animals) - microscopic, mostly marine forms that form branched colonies.
52819011phoronidsDistinctive U-shaped digestive tract. Both Phoronids and Brachiopods use lophophores for feeding. 20 species (all marine
52819012brachiopodsHave a mollusk-like bivalve shell, except that it is dorsal-ventral rather than lateral.
52819013Platyhelminthesbilateral symmetry and no body cavity include flatworms fluckes and tapeworms
52819014Rotiferssmall freshwater pseudocoelomates
52819015ribbon wormsa unique body cavity that houses a feeding organ
52819016Annelidssegmented coelomates with little body specialization
52819017annelid classesoligochaete worms (earth worms) polychaete worms and leeches
52819018Mollusksare unsegmented, but have a true coelom and most have shells and Soft-bodies in 3 parts: head-foot, visceral mass, and mantle
52819019mollusca classeschitons (8 plates for shells) gastropods (snails) Bivalves (oysters) Cephaopods (squid)
52819020Ecdysozoanshave an external skeleton that periodically is shed (ecdysis) for growth.
52819021nematodesinclude unsegmented free living and parasitic worms
52819022Onychophoransclosely are related to arthropods but lack specialization in appendages and body organization
52819023Arachnids (spiders, scorpions, ticks, mites)Body having one or two main parts; six pairs of appendages (chelicerae, pedipalps, and four pairs of walking legs); nearly all terrestrial.
52819024Millipedes (class Diplopoda)Body with distinct head bearing antennae and chewing mouthparts, segmented body with two pairs of walking legs per segment; terrestrial; herbivorous.
52819025CentipedesBody with distinct head bearing large antennae and three pairs of mouthparts; appendages of first body segment modified as poison claws; trunk segments bear one pair of walking legs each; terrestrial; carnivorous.
52819026most successful arthropodsinsects and crustacea
52819027insectsBody divided into head, thorax, and abdomen; 1 pair of antennae; mouthparts modified for chewing, sucking, or lapping; usually with two pairs of wings and three pairs of legs; mostly terrestrial, some freshwater.
52819028CrustaceaBody of two or three parts; 2 pairs of antennae; chewing mouthparts; three or more pairs of legs; mostly marine, some freshwater.
52819029success of insects becausegood body, small size, high reproductive potential, wings for dispersal, complete metamorphosis

LCCS Campbell Bio (8e) Chpt 32 Flashcards

chp32

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735216116AnteriorPertaining to the front, or head, of a bilaterally symmetrical animal.
735216117ArchenteronThe endoderm-lined cavity, formed during gastrulation, that develops into the digestive tract of an animal.
735216118AnthropodA segmented ecdysozoan with a hard exoskeleton and jointed appendages. Familiar examples include insects, spiders, millipedes, and crabs.
735216119Bilateral SymmetryBody symmetry in which a central longitudinal plane divides the body into two equal but opposite halves.
735216120BilaterianMember of a clade of animals with bilateral symmetry and three germ layers.
735216121BlastoporeIn a gastrula, the opening of the archenteronthat typically develops into the anus in deuterostomes and the mouth in protostomes.
735216122BlastulaIn a gastrula, the opening of the archenteronthat typically develops into the anus in deuterostomes and the mouth in protostomes.
735216123Body CavityA fluid- or air-filled space between the digestive tract and the body wall.
735216124Body PlanIn animals, a set of morphological and developmental traits that are integrated into a functional whole—the living animal.
735216125Cambrian ExplosionA relatively brief time in geologic history when large, hard-bodied forms of animals with most of the major body plans known today appeared in the fossil record. This burst of evolutionary change occurred about 535-525 million years ago.
735216126Cell WallA protective layer external to the plasma membrane in the cells of plants, prokaryotes, fungi, and some protists. Polysaccharides such as cellulose (in plants and some protists), chitin (in fungi), and peptidoglycan (in bacteria) are an important structural component of cell walls.
735216127CephalizationAn evolutionary trend toward the concentration of sensory equipment at the anterior end of the body.
735216128ChordateMember of the phylum Chordata, animals that at some point during their development have a notochord; a dorsal, hollow nerve cord; pharyngeal slits or clefts; and a muscular, post-anal tail.
735216129CladeA group of species that includes an ancestral species and all its descendants.
735216130Cleavage(1) The process of cytokinesis in animal cells, characterized by pinching of the plasma membrane. (2) The succession of rapid cell divisions without significant growth during early embryonic development that converts the zygote to a ball of cells.
735216131CoelomA body cavity lined by tissue derived only from mesoderm.
735216132CoelomateAn animal that possesses a true coelom (a body cavity lined by tissue completely derived from mesoderm).
735216133Determinate CleavageA type of embryonic development in protostomes that rigidly casts the developmental fate of each embryonic cell very early.
735216134deuterostome developmentIn animals, a developmental mode distinguished by the development of the anus from the blastopore; often also characterized by radial cleavage and by the body cavity forming as outpockets of mesodermal tissue.
735216135DiploblasticHaving two germ layers.
735216136ecdysozoanMember of a group of animal phyla identified as a clade by molecular evidence. Many ecdysozoans are molting animals.
735216137EctodermThe outermost of the three primary germ layers in animal embryos; gives rise to the outer covering and, in some phyla, the nervous system, inner ear, and lens of the eye.
735216138EndodermThe innermost of the three primary germ layers in animal embryos; lines the archenteron and gives rise to the liver, pancreas, lungs, and the lining of the digestive tract in species that have these structures.
735216139EukaryaThe domain that includes all eukaryotic organisms.
735216140EumetazoanMember of a clade of animals with true tissues. All animals except sponges and a few other groups are eumetazoans.
735216141GastrulaAn embryonic stage in animal development encompassing the formation of three layers: ectoderm, mesoderm, and endoderm.
735216142GastrulationIn animal development, a series of cell and tissue movements in which the blastula-stage embryo folds inward, producing a three-layered embryo, the gastrula.
735216143GradeA group of organisms that share the same level of organizational complexity or share a key adaptation.
735216144HeteroptrophAn organism that obtains organic food molecules by eating other organisms or substances derived from them.
735216145LarvaA free-living, sexually immature form in some animal life cycles that may differ from the adult animal in morphology, nutrition, and habitat.
735216146LophophoreIn some lophotrochozoan animals, including brachiopods, a crown of ciliated tentacles that surround the mouth and function in feeding.
735216147LophotrochozoanMember of a group of animal phyla identified as a clade by molecular evidence. Lophotrochozoans include organisms that have lophophores or trochophore larvae.
735216148MesodermThe middle primary germ layer in an animal embryo; develops into the notochord, the lining of the coelom, muscles, skeleton, gonads, kidneys, and most of the circulatory system in species that have these structures.
735216149MetamorphorsisThe middle primary germ layer in an animal embryo; develops into the notochord, the lining of the coelom, muscles, skeleton, gonads, kidneys, and most of the circulatory system in species that have these structures.
735216150MoltingA process in ecdysozoans in which the exoskeleton is shed at intervals, allowing growth by the production of a larger exoskeleton.
735216151Protostone DevelopmentIn animals, a developmental mode distinguished by the development of the mouth from the blastopore; often also characterized by spiral cleavage and by the body cavity forming when solid masses of mesoderm split.
735216152PseudocoelomateAn animal whose body cavity is lined by tissue derived from mesoderm and endoderm.
735216153Radial ClealageA type of embryonic development in deuterostomes in which the planes of cell division that transform the zygote into a ball of cells are either parallel or perpendicular to the vertical axis of the embryo, thereby aligning tiers of cells one above the other.
735216154Radial SymetrySymmetry in which the body is shaped like a pie or barrel (lacking a left side and a right side) and can be divided into mirror-imaged halves by any plane through its central axis.
735216155Spiral CleavageA type of embryonic development in protostomes in which the planes of cell division that transform the zygote into a ball of cells are diagonal to the vertical axis of the embryo. As a result, the cells of each tier sit in the grooves between cells of adjacent tiers.
735216156TriploblasticPossessing three germ layers: the endoderm, mesoderm, and ectoderm. Most eumetazoans are triploblastic.

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